Pumping, filtering, and heating system for oil-burning plants



March 1e 1926. 1,577,428

E. l. STAPLES PUMPING, FILTERING, AND HEATING SYSTEM FOR OIL BURQINGPLANTS R; Filed May 5. 1923 a sheets-sheet 1 iarle 1:3? es INVEN O fiwaymq ATTRNEYo March 16 1926. 1,577,428

E. I. STAPLES PUMPING, FILTERING, AND HEATING SYSTEM F'OR OIL BURNINGPLANTS Filed May 5 l923 3 Sheets-Sheet 2 ZZu'Ze aza leo INVE Ton.

. 1/ WITNESS: I)" ATTORNEY March 16 1926. 1,577,428

- E. I. STAPLES PUMPING, FILTERING, AND HEATING SYSTEM FOR 01L BURNINGPLANTS O k 0;) Filed May 5. 1923 3 Sheets-Sheet 5 E h k 5% N l\ a Y N IL O o o o o o o 0 C 0 O 6 0 0 2 3 'R l a o Q m -m v v Q g g 0 L0 v ZZWJZJZ Z INVENTOR- Q g B mfim wrruzss; 66m g5 ATTORNE Patented Mar. 16,1926.

untransrsfrns earner EARLE I; STAPLES; OF NEW, YGEK, N.

PUMPING, FILTER-ENG, AND HEATIIIG SYSTEM? FOR OIL=IEURNING:. BLANTS'.

and Heating Systems for Oil-Burning Plants, of which the following is aspecification.

This invention relates to pumping, filterand heating systemsv for oilburning plants and has for its primary object the provision of mechanismof this character including a plurality of pump units arranged co-actingoil heaters and connected thermvith whereby either one or both of saidpump. units can be used as desired.

Another object ot the invention is to provide a system oi this characterwherein the pump units and coacting oil heaters are an ranged togetherin a compact manner and adapted to be supported from a floor or similarfoundation and thereby reduce the having an, oil heating coiliorincdofa,

single copper coil whose. ends, are, brought tor spective externalstufling boxes upon a re-v movable head; of sa d drum, render ng saidends steam tight and providing a structure,

within the drum whiclris tree oii connections which would tend to causeleakage or other trouble inv the heating system. Another object of theinvention; is. to, pro-. vide a system of this character consisting of aplurality of pump units and correspond- 50 ing plurality ofoilheatingunits, the latter including companion drums connected with.the respective pumps and adapted to be. singly or collectivelyv operatedtherewith and designed and connected with said pump units so that shouldit be desired to remove side by side and superposed with respect together in close relation and connected to. 1;e.-..

t ains; c t035- one the d ums for he pu n s repa s, thls may be donequickly. and without inter;

r nc' tha u s tul; opera io of. he

other drum and its, matingpluup unit F gure. 1; 1s. a side. elevation oimy im- PE WQd pumping, filt r ng, s r ining heating mechanism.

Figure 2 is a front view thereof,

Figure 3. is a rear View oi same.

Figure 4 is a plan view of. my improved duplex strainer.

Figure 5 is a section taken on the. line 5=5. of Figure 4;,

Figure 6 is a section taken approximately on line. 6.6 of Figure 4.

Figure 7 is. a section on line 7*? of Figure 6.

Figure 8 is a section on line ure 6.

Figure 9 is a fragmentary sectional View taken through. one of the.movable heads of one of the drums and showing the structure of the steamtight coupling joint be. tween the. head and the stub end of 01. of thecoils. Figure. 10 is a fragmentary view of one of the headsshowingportionjof the coupling device referred to in Figure, 9,.

I car y ng the n e tion o p c i e, I employ a pair ofoil heaters 19, 10,each consisting of a drum having afi xed head 1l and removable head 12.The active oil heating means. which I include in the. heat-.. crs willbe. reterred' to, in. detail hereinafter. These. drums, are mounted sideby side in close relation to each other and same. are associated with aframe 13. which includes lower saddle members is, 14- and superposedmating saddle members 15, The lower saddle members 1 4, 14 are rigidlyconnected together bystay-rods 16. These frame. men}; bers are cast soas to allow the drums to, be partly embraced therebyv and. held in arigid condition, A frame constructed. in this manner constitutes 'astrong and durable foundation tor. the heaters as. well as, for the pumpmechanism which I will describe pres.- e'ntly. The lower members is, letare pro: vided with removable Wedge blocks 17 sec cured to, the saidmembers bolts 18, In this manner, it follows. that either of the drumscan be quickly and conveniently removed without disturbing theoriginaland PPmxima sly see 0i;

intended normal. condition of the mating rum- The r a advan age, o hisarra ge t will better unde s od. after r fe ence is had to my twinpumping mechanism which I employ herein as part of my invention.

Mounted upon the frame members 15, is a pan 18 and supported thereuponare pumps 19, 19 arranged side by side in vertical alignment with therespective heaters 10 so as to give uniform balance to the entireequipment as will be appreciated. These pumps are connected togetherby aby-pass 20 having valved connections 21. This by-pass leads from a pipe22, and the latter is connected with a suction filter 23. Oil may be fedto this filter in the customary manner and taken into the pumps throughthe valved connections 21 of the by pass 20. These connections can becon trolled manually so that either one of the pumps can be cut off fromor arranged in operative communication with the oil supply source asdesired. The valves 21 serve to permit both of said pumps to be cut-oilfrom the oil supply source when it is desired to place the mechanism atrest.

The pumps are associated with an air chamber 24, and, as shown in Figure3, this chamber is provided with a pipe 25 having valved branches 26, 26for operative connection with the oil discharge pipes 27 27 of saidpumps. From this construction, it will be observed that on closing aparticular one of said valves 26, the pump leading thereto may becut-oil from the aforesaid pipe 25.

In each of the drums 10 is a horizontally disposed coil 28 having astraight branch 29 which extends through the windings of the coil and astub branch 30, the latter constituting an oil intake to the coil, andthe former a hot oil outlet. The intake stub branches are operativelyconnected with a bypass 31 having valved ends 32. This bypass joins withan oil supply pipe 33 which leads from supply pipe 25. In this manner,it will be seen that either one or both of the heating coils 28 can beinstantly connected in or disconnected from the supply pipe as desired.

The stubs 29 of the outlet branches are operatively connected with abypass 34 having valved ends 35. This by-pass leads to a filter 36 whichwill be specifically referred to hereinafter.

Extending into each of the drums 10 from the head thereof is a longnozzle 37 having valved branches 38 connected with a by-pass 39. Thisby-pass 39 leads to a pipe 40 which, in turn, is connected with a steamsupply pipe 41 which extends from a bypass 42. The ends of this lastnamed by-pass 42 are provided with valves 43. The pipe 41 is connectedwith one of these valves 43 and the other of said valves 43 is connectedwith a pipe 44 which is coupled to a vertical pipe 45, the latteropening to the central portion of a bypass 46. The by-pass 46 has valvedends 47 leading to the pumps 19. The vertical pipe is connected with anautomatic governor 48, and the latter is joined to a valved air supplypipe 49 leading from the air tank 24. governor and mounted in thevertical pipe 45 are steam valves 50, 50. This governor may be of anysuitable well-known construction which is adapted to control the speedand pressure of the pump 19. It is preferably of the type shown anddescribed in my co-pending application executed on the 31st day of May,1923 and filed in the United States Patent Olfice June 29th, 1923,Serial No. 648,619. Steam from a supply connection 45 is led to thecontrolling valve 45 in aforesaid by-pass 42.

The by-pass 34 is provided with the filter 86 as previously set forthand which comprises a body 51 having a tapered rotary plug valve 52mounted in a seat 53 between the ends of the valve and having its lowerrestricted end 54 mounted to revolve in a central depression 55 of thebody 51. This plug valve is hollow and same is divided by a partition 56to form an upper chamber 57 and lower chamber 58. Leading to the upperchamber 57 and formed in the walls of the valve plug are ports 59 and60. The walls of the chamber 50 of the plug are formed to provide ports61 and 62 and 63 and 64 and as shown, the said ports 63 and 64 areseparated from the ports 61 and 62 by a central partition 65.

The said body 51 is provided with straining chambers 66 and 67 andsuspended from a wall 68 and from above said wall respectively of eachchamber are foraminated cylinders or screens 69 and 7 0. These chambersare disposed in parallel spaced relation to each other and the outercylinder 70 is spaced from the vertical walls of its respectivestraining chamber. The said outer cylinder 70 is somewhat shorter thanthe mating cylinder 69 and same is provided with a flange 71 which restsupon said wall 68. The inner cylinder 69 extends into a space 72 formedin the respective straining chamber and same is closed by a cap 73 whichis strapped to the flange 71 by a bail 74. This bail extends over avertical lug 75 on said cap and associated with said lug is a spring 76.Each space 72 of the respective straining chamber is provided with athreaded cap 77 and bearing against said cap is the upper end of saidspring 76. The base of the inner cylinder 69 is provided with a flaredmember 76 which is held in sealed contact with a correspondingly flaredmember 76 on the lower end of the cylinder 70 by means of said spring76. By this means, it will be seen that the two cylinders are securelyjoined together at their lower ends and that the cylinders are firmlyheld in a relatively rigid condition Above and below the mar nas.

spaced apart and against chattering When the strainer is in operation.The cap 77 has a diameter in excess of that of the cyl inder so that thelatter and its mating cylinder can be removed when it isv desired toclean these parts. vided withan annular depression 7 9 which receives apacking and the fiange 81 of the respective cap 77. Each of said caps 77is provided with a small bleed opening 82 so that steam under pressurein the straining chambers can be gradually made to escape from thestraining chambers when a particular set of straining cylinders 69 and70 is removed. By this means, the operator is insured against injury bythe action of escaping oil under heavy pressure when removing theaforesaid cylinders.

The body 51 is provided with an oil inlet passage 83 and an outletpassage Set. The inlet passage 83 leads to the upper chamber 57 of therotary valve 52 and the outlet passage 8 1 leads to the part of thevalve below the partition 50 as shown in Figure 5. hen the valve isadjusted to one position the ports 59 and 60 connect the inlet passage83 with the straining chamber atthe left in Figure 8, and the oil as itleaves its heater is conducted to the straining cylinder 69 and 70 ofsaid chamber. ing, the oil passes into the space at the top of saidchamber below the cap 76 and flows dot-Inward through the cylinders 69and 70 andthen through a by-pass 841 and to the ports 61 and 62 and thento the outlet 8 1 where it is conducted to the burners, (not shown). Thesame operation is true of the filtering chamber to theright when thevalve plug is adjusted to its second position. In this manner, it beingunderstood that the inlet passage 83 is connected with the by-pass 3 1,it follows that oil may be passed in a continuous manner to the filterand that the cylinders 69 and 70 of a respective filtering chamber canbe removed and cleaned without causing any interruption to the filteringprocess as the hot oil is pumped from the heaters.

The pump valve 52 is provided with a stem 85 having portions 86 and 87of graduated diameters. These portions are journaled to rotate in aremovable cap 88 carried by the body 51. A spring 89 between the plugand the shoulder 90 of said cap. serves to yieldingly hold the plug inits seat. The cap 88 carries a suitable stutling gland :91. The cap isprovided with an annular flange 92 which coacts with a groove 93 in thevalve body, and between this flange and the walls of the groove is apacking gasket 94:. The gland 91 includes a metallic Washer 91 whichbears against the shoulder 91 at the juncture of the portions 86 and 87.Should the spring 88 break while the structure is The body 51 is pro- Inso do in use it will be observedthat motion in an upward direction 01the plug is prevented and that no leakage occurs as a result of suchbreakage.

The plug carries a fixed handle 95 having a lug 96 adapted to co-actwith stops 97 and 98 on the valve body. These stops are related to thefiltering chambers so that when the valve is adjust-ed to one position,one chamber is cut of? from the oil supply source and the otherconnected directly therein. Each filtering chamber has moulded orotherwise formed thereon the word Off and the handle has formed thereonin a similar manner, the word On. The width of the handle of the valveis such that the word Oil of one filtering chamber is always covered bythe handle and the word On of the handle exposed shown in Figure l. Thisenables the operator to quickly understand which of the filteringchambers is in active service.

The stub ends of each heating coil are. welded at 99 in the reducedsockets 99 of coupling devices 100. These devices are each formed with asquared head 101 fitting in a corr spondingly formed collar 101 on theremovable head of the oil heating drum. The head 101 is provided with areduced cylindrical end. 102 fitting in a passage 102 in the drum headand extending from this end 102 is a threaded nipple 10?; which joinsits pipe connection. In other words one oi these devices connects theintake end of the oilheating coil with the pipe 33 and the other of saiddevices connects. the outlet of the coil with the strainer 36. Thenipple 108 is provided with a clamping nut 10lwhich co-acts with a glandto clamp the head 101 in the collar 101 In this manner, it will beobserved that steam tight joints are formed between the coil stubsandthe. head of the mating drum and that the coil is secured againstaccidental derangement due to the action of expansion and contraction.

Each of the straining chambers and GT is provided with a drain cock 106.Tie outlet 01 the chamber is disposed above the base of the latter sothat each chamber constitutes a sediment trap at a point below saidoutlet.

Each of the heating drums 10. provided with a valved drain connection107.

Having described the invention in detail its operation is set forthfollows It is assumed that both pumps 19 are operating; that the valvesin the steam connections from the pumps are open. so as to ad niit steamto said drums at points within the windings of the oil heating coils 28and that oil is being introduced to the coils to be subjected to theaction of the steam. In this manner a continuous flow of oil isconducted through the coils of the aforesaid heaters and as the hot oilemerges from said heaters 1t 1s taken into the strainer mechanism 36 andfinally led therefrom, to the burners of a heating plant. As stated.elsewhere herein either of the chambers 66 or (37 can be used inconjunction with the pumps singly or collectively. As the oil enters theintake passage 83 of the strainer mechanism 36 it is lay-passed by wayof the ports 59 and (50 to the respective filtering chamber. It is thenconducted in a downard direction through the strainer cylinders 6t) anda" d then taken off from the chamber through the lower ported structurizof the rotary valve As the oil takes th s course it is subjected to anextremely cl'ir tive filtering process and all sand and se ment is heldagainst passing to the burn By providing the cylinders 69 and 70 i thejoints 76 and 76" at their lower on: s, the cylinders constitute trapfor sediment and at a requisite time both cylinders can be convenientlyremoved and subjected to a cleaning process. As stated, the base of eachfiltering chamber also constitutes a sediment trap and through thecharacterizing features of the filtering mechanism these chambers can beplaced under individual control wienever it is desired to relieve sameof their accumulated sediment.

The pipe 40 has a steam pipe 108 leading therefrom and connected by avalve 109 to the suction filter 23 from which oil is fed to the pumps.This suction filter 23 is provided with a drain valve 110. By means ofthis arrangement it will be observed that steam from the pipe l0 can bemade to enter the said filter to render the same self cleaning.

The filter 36 is so constructed that the combined area of the cylinders(39 and 70 thereof is approximately ten times greater than the area ofthe intake opening of the filter 36 so as to give ample strainingsurface and to operatively permit an unrestricted flow of heated oilfrom the system. In operation of this strainer, oil enters the top ofeach chamber and part of the oil flows down into the space between therespective cylinders 69 and 70 thence through the perforations in thecylinder 70 directly to the outlet of the strainer, while other oilpasses through the upper extended end of the cylinder 69 thence in adownward direction thcrethrough until it reaches the base of thefiltering chamber. It then passes up to the outlet of the strainer asshown by the arrows. This provides for free circulation of the oil andcauses any heavy sediment to respectively lodge in the space between thecylinders 69 and 70 and upon the bottom of the filtering chamber.

What is claimed as new is:

1. An oil heating, pumping and filtering system comprising a pair of oilheaters, frames supporting said heaters in parallel relation to eachother, a pan supported by said frames above said heaters, pumps risingfrom the pan and disposed in vertical alignment with the respectiveheaters, a horizontally disposed coil arranged in each heater and coiledfrom its inlet and having a straight portion extending to its outlet,means for causing filtered oil to be delivered to the pumps and thendischarged to said coils and a filter connected with said coils toreceive the heated oil therefrom and for caus ing said oil as it leavesthe filter to pass to the burner line of a heating plant, means fordelivering steam to the central portion of said heaters to serve as aheating agent for the oil flowing through said coils.

2. Mechanism of the class described comprising a plurality of identicaloil heaters, a pump for each heater, a valved connection between eachpump and its respective heater, means for causing filtered oil to beconducted to the pumps and discharged therefrom to said valvedconnections, whereby to cause oil under; pressure to be delivered to theheaters, means for subjecting the heaters to the action of a heatingagent, a strainer common to all of said heaters, and valved meansbetween each heater and said strainer for causing one or all of saidheaters to be arranged in operative connection with said filter, a pansuperposed with respect to all of said heaters and constituting asupport for all of said pumps, and a frame rigidly joining the heatersof the pan.

8. Mechanism of the class described comprising a plurality of oilheaters, an individual pump for each heater, means for causing oil toflow to the pumps and to pass therefrom to the respective heaters, meansserving as a source of reception for oil flowing from one or all of saidheaters, and including valved connections receiving heated oil from theheaters, and a frame structure superposing the pumps with respect to theheaters and including saddles arranged respectively above and below theheaters and serving to permit of sidewise withdrawal of one of theheaters from the frame without disturbing the normal relation of theother of said heaters.

In testimony whereof I have aflixed my signature.

'EARLE I. STAPLES.

